Vehicle-wheel.



T. w. Guwmz.

VEHICLE WHEEL. APPLICATION FIL ED APR-8. 191

?atent ed July 13, 19 15.

INVEJNT'OR,

reta ler ennin TRACY W. GU'IHRIE, OI CLEVELAND, OHIQ.

*FEHICLEJHH BEL.

Specification of Letters Patent.

Patented duty Ltd, 39115.

Application filed April 3, 1912. Serial No. 889,205.

To all whom it may camera.

Be it known that l, Tuner 1V. GUTHRIE, a citizen of the United States, and a resident o'l Cleveland, county of uyahoga, and State of Ohio, have invented a new and useful linprovement in Vehicle WhrailS, of which the following is a specification, the principle of the invention being herein explained and the best mode. in which I have coi'iteinplat-ed applying that principle, so as to distinguish it from other inventions.

My present invention relates more par tirularly to a. deinountable tire carrying rim made up of two annular laterally abutting portions provided with cooperating locking; devices of the kind illustrated for example in S. Patent No. 9793-68. to 3. hi. (.lilbert, this type o'l riin being more or less connnonly known in the trade as the Gilbert riin. The means for interlocking the two se'pa rablc portions of the tir supporting riin, as shown in the patent just referred to, coinprise a series oi' lugs provided on the radially inner surface of the portions, and a corresponding series of laterally extending hooked or socket lugs provided on the other portion, the last-named lugs being adapted to engage the first-nainciil series upon opposite circiunferential movement of the two portions. Owing to the character o'l this construction, it is highly desirable that the first series of lugs be driven home in the recesses forming the hooks in the second series of lugs; otherwise a. very much increased strain is imposed on the latter by the tendency of the inflated, tire, which is held between the flanges on the two sections of the rim, to force the latter apart. It is, of course, also desirable to lock the two sections securely in their engaging position, since otherwise the detachable flange bearing sec tion might rotate sutiiciently relatively to the other to become entirely disengaged.

The object of the present invention is to provide a simple device for not merely thus securing the rim sections together with their respective series of lugs in interlocking engagement, but to assist in forcing; said lugs into such engagement. lVleans are also pro vided which prevent disengagement of the device, which locks the two sections together.

To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter ,fully described and claim.

The annexed drawing and the following description set forthin detail certain mechanisin embodying the invention, such dis closed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing:-Figure l is a. transverse section through a wheel rim. provided wit-ha deinountable rim of the present type and is taken on the line 1-1 in Fig. 3 Fig. 2 is a view in perspective of the inner side of the deniountahle rim showing. one ilorin of my locking device; Fig. 3 is a plan view of the inner side of the dernountable rim showing my preferred construction of locking n'icans; Fig. -lis a plan view of a portion of the telly band slowing the re taining lug thereon; and Fig. is a per-sped tive view of a slotted keeper used to retain thedeinountable riin on the telly band.

Only the demountahle rim is shown in detail, it being; deemed unnecessary to illustrate the telly with its telly band except so in r as it is shown in Figs. l and l, and means for securing such demountable ti-re-silpport- JHQ lil'Il thereon. it is also unnecessary to more than briefly describe the known features of the deinountable rim itself.- Thus, said rim consists of two annular laterally abutting portions that abut in a plane perpendicular to the axis of the wheel: one such section 1, preferably the wider one, is provided with a series of down-turiuul lugs 12 preferably formed integrally with the ma terial of the section itself; while the other section 3 is provided with locking projections or socket lugs 4, likewise y'ireferably formed integrally with said section, and .in the preferred form. shown extending first downward, and then laterally, so as to pro feet beneath the first-named section, and. to be adapted to engage the lugs extending inwardly from the same upon opposite rotation occurring between the sections.

particularly pointed out in the In order to assemble the sections of the dernountable or auxiliary rim, the lugs of the section 1 are slipped between thelugs of the other section, and then said sections are rotated relatively to each other in opposite directions, sothat the first-named lugs will. pass behind those last named. Such firstmamed lugs are slightly i'ieveled on, their inner engaging edges, so as to more or less readily thus engage with the lugs on section 3; it is frequently a difiicult matter to re .inner face of the Wider section at any convenient point about the peripheryof the same and disposed so as to be capable of ly. mg in one position-entirely clear of the two series of lugs. Such latch may be of-the form shown in Fig. the laterally project ing portion 6 being of wedge shape and so disposed with reference to the lugs on the same section as to fit between two such lugs and leave suliicient space for one of the hooked lugs to lie between it and the next in vardly directed lup". Upon swinging the latch ht'i'erer. into operative position, its w d en'l will forcibly contact with the liGti iii sue'i adj accnt hooked lug, and owing to wedged or beveled conformation will drive such lug, and with it of course, the ring or section of which it is a part, until it is in proper position in snug engagement wit '1 the adjacent inwardlv turned lug". In

this position the latch will then ell'ectually retain the two sections until. it is swung back. Tl e fit is made sulliciently tight to insure the latch ren'iaining in place, even when the assembled rim is on the wheel, but double assuran e is had by extending the latch to the proper width. to fill. the lateral space between the lugs and the beveled wall 7 of the tellyd'mnd h, which thus absolutely prevents its swinging outwardly again until the rim is dismounted.

Another construction which may be used for the purpose of holding the latch member in engagement is shown in Figs. 1, 3 and 4. In this form a lug 9 may be attached to the telly band and will then be adapted to substantially contact the latch member when in engagement with the lugs and to prevent disengagement until the rim is dismounted. The latch will then preferably be of the form shown in Fig.

It is unnecessary to describe at length the means for retaining the demountable rim on the wheel as any suitable type may be used. In Fig. 1, I illustrate a bolt 10 engaging the telly 11 of the wheel and having attached thereto a. slotted keeper 12 by means of a nut 13. The heepers beveled engaging face 14 forces the portion 3 onto the telly band as will be readily understood.

The advantages of my construction are several. Disengagement of the interengaging lugs is entirely prevented and yetthe means used to secure this are simple, positive in action and not liable to rust into position, which. has heretofore been one dilliculty experienced. 7

Other modes of applying the principle of: my invention may be'employcd instead of the one explained, change being made as regards the mechanism herein discloscd.pr0- vided the means stated by the following claim or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention:-

lhc combination with a wheel bearing a telly band of a demountable tire carrying rim, comprising two annular laterally abuttin; portions, each of said portions having a plurality of intercngagino lugs on the .radially inner surface or the same, a latch member pivotally mounted on one of said portions and. adapted to retain said lugs in such engagement, said latch having a curved surface on one side adapting it to move such portions iutoproper circumferential position, and :1 lug mounted on the radially outer surface oi? said 'lelly band in position to laterally abut against said latch member upon the mounting of said do- {mountable rim upon said folly hand, there by. preventing disengagement of said latch inen'ibea, said latch member being provided with a notch upon one side to facilitatedisengagement. v Signed by me this 4th day of April, 1912. TRACY W. GUTHRTI. Attested by- R. C. CooLnY, 1*. L. BRAUN. 

